If the sides `a, b and c` of a triangle ABC are in `A.P.` then `b/c` belongs to

If the sides a,b,c of a triangle ABC are in A.P., prove that cosA "cot" (A)/(2) , cosB "cot" (B)/(2), cosC "cot" (C)/(2) are also in A.P.

If the angles A,B and C of a triangle ABC are in an A.P with a positive common difference such that the smallest angle is one third of the largest angle, and the sides a, b and c are the sides opposite to the angles A ,B and C such that (a)/(sin A)=(b)/(sin B)=(c)/(sin C) then the ratio of the longest side to that of the shortest side will be

If a,b,c are sides of Delta ABC are in A.P.then

If the sides a,b and c of a ABC are in A.P.,then (tan(A/2)+tan(C/2)):cot(B/2) , is

If the angle A, B and C of a triangle ABC are in A.P and a:b=1: sqrt(3) If c=4 cm then the area (in sq. cm) of this triangle is :

If the angle A, B and C of a triangle ABC are in A.P and a:b=1: sqrt(3) If c=4 cm then the area (in sq. cm) of this triangle is :

If the angle A, B and C of a triangle ABC are in A.P and a:b=1: sqrt(3) If c=4 cm then the area (in sq. cm) of this triangle is :

If the angle A,B,C of a Delta ABC are in A.P then :-